What do you get when you cross Once Upon a Time’s public domain-driven storytelling with the monsters of British Victorian literature? (Besides that one episode of Once set in black-and-white Frankenstein world.)

That’d be Penny Dreadful, a new series premiering May 11 on Showtime – and Monday afternoon on YouTube. The drama – named for the cheap, sensational, serialized tales popular in 19th century Britain – weaves together a set of stories about characters both familiar (Victor Frankenstein, Dorian Gray) and original. You’ll find unembeddable video of the first episode here.